Erlang distributed activity times in stochastic activity networks. - Yousry H. Abdelkader (Kybernetika, 2003)

Evaluating project completion times when activity times are Weibull distributed. - Yousry H. Abdelkader (Eur. J. Oper. Res., 2004)

Adjustment of the moments of the project completion times when activity times are exponentially distributed. - Yousry H. Abdelkader (Ann. Oper. Res., 2010)

Computing the Performance Measures in Queueing Models via the Method of Order Statistics. - Yousry H. Abdelkader; Maram Al-Wohaibi (J. Appl. Math., 2011)